Study on the heat transfer characteristics of a plate-fin-typed precooler considering cooling fluid phase change
A quasi-two-dimensional calculation method has been proposed to design a plate-fin-typed precooler with high efficiency and low resistance. This method considers the variation of fluid properties during the heat transfer process, particularly for cryogenics with phase change. The precooler heat tran...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23003799 |
| _version_ | 1797808380136390656 |
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| author | Tao Liang Wanwu Xu Wei Ye Zhiyan Li Zhenkang Zhang Saiqiang Zhang |
| author_facet | Tao Liang Wanwu Xu Wei Ye Zhiyan Li Zhenkang Zhang Saiqiang Zhang |
| author_sort | Tao Liang |
| collection | DOAJ |
| description | A quasi-two-dimensional calculation method has been proposed to design a plate-fin-typed precooler with high efficiency and low resistance. This method considers the variation of fluid properties during the heat transfer process, particularly for cryogenics with phase change. The precooler heat transfer characteristics are comprehensively investigated based on the proposed method and calculation models. The calculation results demonstrate that the proposed method effectively explores the fluid properties distribution, such as the temperature distribution and steam quality distribution inside the precooler. Besides, the hot fluid temperature drop exceeds 1200 K, while the pressure drop remains below 15% of the inlet pressure above all cases. Moreover, the heat transfer performance between cooling fluid and hot fluid is compared. It is worth noting that the cooling fluid heat transfer coefficient is10∼102 magnitude higher than that of the hot fluid, especially when the cooling fluid steam quality is below 0.60. Therefore, it is critical to improve the heat transfer performance of the hot fluid for the precooler. Additionally, the first heat exchanger inside the precooler plays a more important role in heat transfer than heat exchangers at other locations because the temperature drop and pressure drop inside the precooler account for the largest proportion, with a value up to 50%. |
| first_indexed | 2024-03-13T06:36:40Z |
| format | Article |
| id | doaj.art-176c9da5d2244896b1e74fb049909566 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-13T06:36:40Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-176c9da5d2244896b1e74fb0499095662023-06-09T04:28:01ZengElsevierCase Studies in Thermal Engineering2214-157X2023-07-0147103073Study on the heat transfer characteristics of a plate-fin-typed precooler considering cooling fluid phase changeTao Liang0Wanwu Xu1Wei Ye2Zhiyan Li3Zhenkang Zhang4Saiqiang Zhang5Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, ChinaCorresponding author.; Science and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, ChinaScience and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, ChinaScience and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, ChinaScience and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, ChinaScience and Technology on Scramjet Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, Hunan, 410073, ChinaA quasi-two-dimensional calculation method has been proposed to design a plate-fin-typed precooler with high efficiency and low resistance. This method considers the variation of fluid properties during the heat transfer process, particularly for cryogenics with phase change. The precooler heat transfer characteristics are comprehensively investigated based on the proposed method and calculation models. The calculation results demonstrate that the proposed method effectively explores the fluid properties distribution, such as the temperature distribution and steam quality distribution inside the precooler. Besides, the hot fluid temperature drop exceeds 1200 K, while the pressure drop remains below 15% of the inlet pressure above all cases. Moreover, the heat transfer performance between cooling fluid and hot fluid is compared. It is worth noting that the cooling fluid heat transfer coefficient is10∼102 magnitude higher than that of the hot fluid, especially when the cooling fluid steam quality is below 0.60. Therefore, it is critical to improve the heat transfer performance of the hot fluid for the precooler. Additionally, the first heat exchanger inside the precooler plays a more important role in heat transfer than heat exchangers at other locations because the temperature drop and pressure drop inside the precooler account for the largest proportion, with a value up to 50%.http://www.sciencedirect.com/science/article/pii/S2214157X23003799PrecoolerHeat transferCalculationPhase change |
| spellingShingle | Tao Liang Wanwu Xu Wei Ye Zhiyan Li Zhenkang Zhang Saiqiang Zhang Study on the heat transfer characteristics of a plate-fin-typed precooler considering cooling fluid phase change Case Studies in Thermal Engineering Precooler Heat transfer Calculation Phase change |
| title | Study on the heat transfer characteristics of a plate-fin-typed precooler considering cooling fluid phase change |
| title_full | Study on the heat transfer characteristics of a plate-fin-typed precooler considering cooling fluid phase change |
| title_fullStr | Study on the heat transfer characteristics of a plate-fin-typed precooler considering cooling fluid phase change |
| title_full_unstemmed | Study on the heat transfer characteristics of a plate-fin-typed precooler considering cooling fluid phase change |
| title_short | Study on the heat transfer characteristics of a plate-fin-typed precooler considering cooling fluid phase change |
| title_sort | study on the heat transfer characteristics of a plate fin typed precooler considering cooling fluid phase change |
| topic | Precooler Heat transfer Calculation Phase change |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23003799 |
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